Problem with camera and character controller (fighting game)

I want to make a 3D fighter.
The cámera is always behind the player, but it points to the enemy player that is also moving in 3D space.
I want my movement to be influenced by the camera (who is influenced by the enemy player). With influenced by the camera I mean that if I press the right arrow, I dont want my character moving relative to the game default axis, instead I want to move right relative to the current camera rotation.

Any suggestions how to make the movement relative to the camera?

I have a JUGGAAR for this behavior.
you just have to manage the transformation or position of camera by joystick or buttons and make your player as child and control the animation along the movement of camera thorough controllers
i hope you can understand the situation or solution.